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myTinyTodoHorde Groupware
Free

Free and distributed under the GNU GPL.

 Free

Free and open source with no paid tier.

Web, Self-hosted Web, Self-hosted
  • Light to install on ordinary PHP hosting
  • Quick-entry syntax for priority, tags and due dates
  • Full groupware suite beyond mail, including tasks, notes and time tracking
  • CalDAV, CardDAV and ActiveSync sync
  • Single password protection rather than per-user accounts
  • Plain feature set with no recurring-task scheduling described
  • Requires running and maintaining a PHP server
  • Older codebase with a long history of security fixes to track
Self-hosted Self-hosted
Open source Open source
License: GPL-2.0 License: LGPL/GPL
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.